package com.mfm.service.impl;

import com.mfm.bean.Grade;
import com.mfm.dao.GradeDao;
import com.mfm.dao.impl.GradeDaoImpl;
import com.mfm.service.GradeService;

import java.util.List;

public class GradeServiceImpl implements GradeService {
    private GradeDao gradeDao=new GradeDaoImpl();
    @Override
    public List<Grade> queryAll() {
        return gradeDao.queryAll();
    }
}
